US4785143A - Safety edge for a door - Google Patents
Safety edge for a door Download PDFInfo
- Publication number
- US4785143A US4785143A US07/085,561 US8556187A US4785143A US 4785143 A US4785143 A US 4785143A US 8556187 A US8556187 A US 8556187A US 4785143 A US4785143 A US 4785143A
- Authority
- US
- United States
- Prior art keywords
- sheath
- openings
- safety edge
- region
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000006260 foam Substances 0.000 claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 8
- 239000004020 conductor Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000063 preceeding effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
- H01H3/141—Cushion or mat switches
- H01H3/142—Cushion or mat switches of the elongated strip type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/47—Detection using safety edges responsive to changes in fluid pressure
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch
Definitions
- This invention is concerned with safety door edges as in heavy over-head doors to protect personnel, equipment, and the door from damage by impact; as well as for use in doors for elevators, mass transit vehicles, and the like, wherein an extremely high degree of reliability is a requirement, as well as substantial versatility for use under many different circumstances.
- FIG. 1 is an elevational view showing a door construction including a safety edge of the present invention.
- FIG. 2 is a transverse sectional elevational view taken generally along the line 2--2 of FIG. 1, enlarged for clarification.
- FIG. 3 is a longitudinal sectional elevational view taken generally along the line 3--3 of FIG. 2.
- FIG. 1 a building wall is shown at 10 in FIG. 1, having a doorway 11 provided with a door 12. While the door illustrated at 12 is an overhead door, having a safety edge 13 of the present invention along its lower side or leading edge, the device of the present invention is equally applicable for use with vertically disposed, horizontally moveable doors and other closures, as desired.
- the door edge construction 13 may include an outer casing or sheath 18 of elongate, generally constant cross-sectional outline configuration, extending closely along the underside or edge 15 of the door 12.
- the casing or sheath 18 may advantageously be fabricated of form retaining, but flexible material, such as rubber, having a bottom wall 19 for engagement with the door threshold or ground, side walls 20 and 21 upstanding integrally from opposite side edges of the bottom wall, and a top wall 22 extending between upper edges of the side walls in close facing relation with the leading door edge 15.
- the sheath 18 may be further formed with a male, dovetail formation 23 upstanding along the top wall 22 for interfitting engagement with the door edge formation 16, facilitating quick and easy mounting, removal and replacement of the door edge 13 with respect to the door 12.
- Opposite ends of the sheath 18 are closed and sealed, as by end walls 25 and 26, and provided interiorly of the sheath 18, at least at one region thereof, is a relatively stiff or rigid transverse formation, as at 27, extending entirely across the sheath, so as to effectively prevent or minimize compression of the sheath at that location.
- the relatively stiff or rigid transverse structure 27 is shown at one end, the left hand end of the sheath.
- the relatively rigid structure 27 may be of a configuration conformable to the internal cross-sectional configuration of the sheath 18, and fabricated of relatively stiff material, such as firm rubber or plastic. If desired, more than one relatively incompressible transverse structures, as at 27, may be provided in the sheath 18, say at spaced locations therealong.
- Substantially fully occupying the remainder of the sheath 18, except that occupied by the transverse structure 27 may be a resiliently compressible inner formation 30, extending longitudinally along the interior of the sheath.
- the compressible formation 30 is fabricated essentially of foam, and includes an elongate inner or upper foam strip 31 extending closely along the inner side of the sheath top wall 22, substantially co-extensive therewith, except for the space occupied by the transverse structure 27.
- a similar lower, or outer foam strip 32 may be substantially congruent to the upper or inner foam strip 31, being in generally parallel, facing, spaced relation with respect to the latter, and extending closely along and substantially co-extensive with the lower or outer sheath wall 19. That is, the outer foam strip 32 substantially completely occupies the interior face of the outer sheath wall 19, except for that occupied by the transverse structure 27.
- an intermediate foam strip 33 is interposed in sandwiched relation between the inner and outer foam strips 31 and 32, being of an outline configuration substantially congruent to that of the inner and outer foam strips.
- the intermediate foam strip 33 is provided with a plurality of vertically extending, through openings, as at 34, 35, 36 and 37 arranged in a series or row longitudinally of the intermediate strip, and spaced apart from each other by transverse partitions or walls, as at 38 and 39 remaining between the openings or through holes.
- the openings or through holes 34-37 are spaced from the end surfaces of the intermediate strip 33 to leave end walls, as at 40 and 41, for the end openings or holes 33 and 37.
- openings 34-37 are interposed between the upper and lower foam strips 31 and 32, it will be apparent that the openings are closed by the upper and lower strips, and combine therewith to define essentially closed cavities or chambers of the openings 34-37.
- the foam of the intermediate layer 33 may be of the open cell type for communication between chambers 34-37 through the cells of the partitions 38 and 39.
- the foam of intermediate layer 33 may be of the closed cell type where this structure is desirable, and there be provided passageways or conduits through the intermediate partitions 38 and 39, as at 44 and 45.
- a fluid pressure sensitive switch element which may be of the type manufactured by Micro Pneumatic Logic, Inc. of Fort Lauderdale, Fla., or equivalent.
- the pressure sensitive switch element 46 is effectively protected, as by imbedding or otherwise enclosing within the rigid structure 27, and includes a pressure port or nipple 47 communicating through the end partition and into the adjacent end chamber 34.
- the pressure sensitive switch element 46 is provided with electrical conductors as at 48 and 49 extending in sealed relation outwardly from the sheath 18 for connection in desired control circuitry.
- the pressure sensitive switch element 46 is in pneumatic communication from its mounting in the transverse structure 27 throughout the entire interior of the sheath 18 through the fluid passage means defined by the series of openings 34-37 and intermediate conduit means, as at 44 and 45.
- the switch element 46 upon the application of external pressure to the sheath 18, anywhere therealong except at the location of structure 27, increased internal pressure in the several chambers 34-37 is communicated to the switch element 46 to actuate the latter for effecting a desired result.
- the switch is protectively enclosed in the transverse structure, which also serves upon normal ground engagement of the door 12, to prevent pressure increase and actuation of the switch element.
- the present invention may include a pair or upper and lower, flexible, conductive sheets, say of aluminum foil or the like, as at 50 and 51.
- These conductive sheets are on opposite, upper and lower sides of the intermediate foam strip, being respectively sandwiched therebetween and the upper and lower foam strips 31 and 32. That is the upper or inner conductive sheet 50 is sandwiched between the intermediate foam strip 33 and upper foam strip 31, while the lower or outer conductive sheet is sandwiched between the intermediate foam strip and the lower or outer foam strip 32.
- the upper and lower conductive sheets 50 and 51 extend, respectively, over and under the several openings 34-37 in the intermediate strip, being in spaced, confronting relation with respect to each other through the several openings.
- the conductive sheets 50 and 51 may be deflected into and through a respective chamber for electrically conductive engagement with each other.
- conductors 52 and 53 Connected to respective conductive sheets 50 and 51 are conductors 52 and 53, which may pass in sealed relation exteriorly of the sheath 18 for connection to suitable circuitry.
- the conductive sheets 50 and 51 combine to define a pressure sensitive switch construction in addition to that of switch 46.
- the relative sensitivity may be selected, as by adjustment of the switch element 46 and selection of the densities and thicknesses of foam elements 31, 32 and 33. If desired, the switch construction of sheets 50 and 51 may be redundant to or a back-up for that of switch element 46, or vice-versa. Further, one switch element may operate in sequence with the other, as for controlling a plurality of separate functions, as in the stopping and reversing of door movement, or other desired functions, all for great reliability and versatility in operation.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Push-Button Switches (AREA)
Abstract
A safety door edge switch including a flexible sheath, an internal resiliently compressible foam formation in the sheath and providing fluid communication therealong, a relatively rigid transverse structure at one region in the sheath and containing a pressure sensitive switch element communicating with the inner formation for sensing pressure throughout the sheath and a pair of spaced confronting flexible contact sheaths engageable to provide a secondary switch.
Description
This invention is concerned with safety door edges as in heavy over-head doors to protect personnel, equipment, and the door from damage by impact; as well as for use in doors for elevators, mass transit vehicles, and the like, wherein an extremely high degree of reliability is a requirement, as well as substantial versatility for use under many different circumstances.
It is an important object of the present invention to provide a door edge switch construction for use in the broad field discussed above, wherein may be obtained extremely high sensitivity to external pressure, as well as the reliability of a back-up or redundant switch system, which may be selectively employed as a plural switch system for actuating a plurality of operators.
It is a more particular object of the present invention to provide a highly improved safety door edge switch having the advantageous characteristics mentioned in the preceeding paragraph wherein a pressure sensitive switch element may be protectively encased in the door edge construction itself, as well as the door edge provided with internal contact elements for connection to an exterior circuit as a redundant, alternative, sequential, or other desired combination of switches.
Other objects of the present invention will become apparent upon reading the following specification and referring to the accompanying drawings, which form a material part of this disclosure.
The invention accordingly consists in the features of construction, combinations of elements, and arrangements of parts, which will be exemplified in the construction hereinafter described, and of which the scope is indicated by the appended claims.
FIG. 1 is an elevational view showing a door construction including a safety edge of the present invention.
FIG. 2 is a transverse sectional elevational view taken generally along the line 2--2 of FIG. 1, enlarged for clarification.
FIG. 3 is a longitudinal sectional elevational view taken generally along the line 3--3 of FIG. 2.
Referring now more particularly to the drawings, a building wall is shown at 10 in FIG. 1, having a doorway 11 provided with a door 12. While the door illustrated at 12 is an overhead door, having a safety edge 13 of the present invention along its lower side or leading edge, the device of the present invention is equally applicable for use with vertically disposed, horizontally moveable doors and other closures, as desired.
The safety edge 13, see FIG. 2, extends along the lower or leading edge 15 of the door 12, which door portion may be provided with an elongate, female dovetail or similar configuration, as at 16.
The door edge construction 13 may include an outer casing or sheath 18 of elongate, generally constant cross-sectional outline configuration, extending closely along the underside or edge 15 of the door 12. The casing or sheath 18 may advantageously be fabricated of form retaining, but flexible material, such as rubber, having a bottom wall 19 for engagement with the door threshold or ground, side walls 20 and 21 upstanding integrally from opposite side edges of the bottom wall, and a top wall 22 extending between upper edges of the side walls in close facing relation with the leading door edge 15. The sheath 18 may be further formed with a male, dovetail formation 23 upstanding along the top wall 22 for interfitting engagement with the door edge formation 16, facilitating quick and easy mounting, removal and replacement of the door edge 13 with respect to the door 12.
Opposite ends of the sheath 18 are closed and sealed, as by end walls 25 and 26, and provided interiorly of the sheath 18, at least at one region thereof, is a relatively stiff or rigid transverse formation, as at 27, extending entirely across the sheath, so as to effectively prevent or minimize compression of the sheath at that location. In the illustrated embodiment, the relatively stiff or rigid transverse structure 27 is shown at one end, the left hand end of the sheath. The relatively rigid structure 27 may be of a configuration conformable to the internal cross-sectional configuration of the sheath 18, and fabricated of relatively stiff material, such as firm rubber or plastic. If desired, more than one relatively incompressible transverse structures, as at 27, may be provided in the sheath 18, say at spaced locations therealong.
Substantially fully occupying the remainder of the sheath 18, except that occupied by the transverse structure 27 may be a resiliently compressible inner formation 30, extending longitudinally along the interior of the sheath. The compressible formation 30 is fabricated essentially of foam, and includes an elongate inner or upper foam strip 31 extending closely along the inner side of the sheath top wall 22, substantially co-extensive therewith, except for the space occupied by the transverse structure 27.
A similar lower, or outer foam strip 32 may be substantially congruent to the upper or inner foam strip 31, being in generally parallel, facing, spaced relation with respect to the latter, and extending closely along and substantially co-extensive with the lower or outer sheath wall 19. That is, the outer foam strip 32 substantially completely occupies the interior face of the outer sheath wall 19, except for that occupied by the transverse structure 27.
In addition, an intermediate foam strip 33 is interposed in sandwiched relation between the inner and outer foam strips 31 and 32, being of an outline configuration substantially congruent to that of the inner and outer foam strips. However, the intermediate foam strip 33 is provided with a plurality of vertically extending, through openings, as at 34, 35, 36 and 37 arranged in a series or row longitudinally of the intermediate strip, and spaced apart from each other by transverse partitions or walls, as at 38 and 39 remaining between the openings or through holes. Also, the openings or through holes 34-37 are spaced from the end surfaces of the intermediate strip 33 to leave end walls, as at 40 and 41, for the end openings or holes 33 and 37.
As the vertically extending, through holes or openings 34-37 are interposed between the upper and lower foam strips 31 and 32, it will be apparent that the openings are closed by the upper and lower strips, and combine therewith to define essentially closed cavities or chambers of the openings 34-37.
It is essential that the several openings or chambers 34-37 be in fluid communication with each other, in order to transmit therebetween pressure changes occurring by external pressure applied to the sheath 18. If desired, the foam of the intermediate layer 33 may be of the open cell type for communication between chambers 34-37 through the cells of the partitions 38 and 39. Alternatively, the foam of intermediate layer 33 may be of the closed cell type where this structure is desirable, and there be provided passageways or conduits through the intermediate partitions 38 and 39, as at 44 and 45.
Protectively located in the relatively rigid transverse structure 27, as at 46, is a fluid pressure sensitive switch element, which may be of the type manufactured by Micro Pneumatic Logic, Inc. of Fort Lauderdale, Fla., or equivalent. The pressure sensitive switch element 46 is effectively protected, as by imbedding or otherwise enclosing within the rigid structure 27, and includes a pressure port or nipple 47 communicating through the end partition and into the adjacent end chamber 34. The pressure sensitive switch element 46 is provided with electrical conductors as at 48 and 49 extending in sealed relation outwardly from the sheath 18 for connection in desired control circuitry.
Thus, the pressure sensitive switch element 46 is in pneumatic communication from its mounting in the transverse structure 27 throughout the entire interior of the sheath 18 through the fluid passage means defined by the series of openings 34-37 and intermediate conduit means, as at 44 and 45. Thus, upon the application of external pressure to the sheath 18, anywhere therealong except at the location of structure 27, increased internal pressure in the several chambers 34-37 is communicated to the switch element 46 to actuate the latter for effecting a desired result. Further, the switch is protectively enclosed in the transverse structure, which also serves upon normal ground engagement of the door 12, to prevent pressure increase and actuation of the switch element.
In addition to the foregoing, the present invention may include a pair or upper and lower, flexible, conductive sheets, say of aluminum foil or the like, as at 50 and 51. These conductive sheets are on opposite, upper and lower sides of the intermediate foam strip, being respectively sandwiched therebetween and the upper and lower foam strips 31 and 32. That is the upper or inner conductive sheet 50 is sandwiched between the intermediate foam strip 33 and upper foam strip 31, while the lower or outer conductive sheet is sandwiched between the intermediate foam strip and the lower or outer foam strip 32. The upper and lower conductive sheets 50 and 51 extend, respectively, over and under the several openings 34-37 in the intermediate strip, being in spaced, confronting relation with respect to each other through the several openings. Upon the application of external pressure to the sheath 18 except at the location of transverse structure 27, the conductive sheets 50 and 51 may be deflected into and through a respective chamber for electrically conductive engagement with each other. Connected to respective conductive sheets 50 and 51 are conductors 52 and 53, which may pass in sealed relation exteriorly of the sheath 18 for connection to suitable circuitry. Thus, the conductive sheets 50 and 51 combine to define a pressure sensitive switch construction in addition to that of switch 46.
The relative sensitivity may be selected, as by adjustment of the switch element 46 and selection of the densities and thicknesses of foam elements 31, 32 and 33. If desired, the switch construction of sheets 50 and 51 may be redundant to or a back-up for that of switch element 46, or vice-versa. Further, one switch element may operate in sequence with the other, as for controlling a plurality of separate functions, as in the stopping and reversing of door movement, or other desired functions, all for great reliability and versatility in operation.
Although the present invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, it is understood that certain changes and modifications may be made within the spirit of the invention.
Claims (6)
1. A safety edge for a door or the like comprising an elongate outer sheath fabricated of flexible air impervious material and adapted for attachment to a door edge, airtight end closures on said sheath, an elongate inner formation of resiliently compressible foam configured to conformably occupy the interior of said outer sheath and being compressible under external pressure applied to said outer sheath, said inner foam including a longitudinally extending intermediate layer having transverse through openings defining therebetween partitions having longitudinal openings communicating between the transverse through openings, and a substantially rigid incompressible transverse structure in one region of said sheath, and having a configuration conforming to the interior cross-section of said sheath to effectively prevent deformation of the sheath, and fluid passage means communicating from said one region throughout the remaining interior region of said sheath, and a pressure sensitive switch element protectively located in said transverse structure within said sheath for sensing pressure change throughout said sheath without subjecting the switch element to external pressure.
2. A safety edge according to claim 1, said one region being located at one end of said sheath.
3. A safety edge according to claim 1, said foam formation comprising a pair of longitudinally extending inner and outer strips, and an intermediate strip interposed between said inner and outer strips, said fluid passage means being defined by a plurality of openings in said intermediate strip providing interior air chambers, and air conduit means communicating between said air chambers.
4. A safety edge according to claim 3, in combination with a pair of flexible conductive sheets on opposite sides of said intermediate strip respectively sandwiched between the latter and said inner and outer strips and in spaced confronting relation through said openings, said conductive sheets being displacable through said openings into electrical engagement under external pressure applied to said sheath to define an alternate pressure sensitive switch.
5. A safety edge according to claim 3, said intermediate strip being of closed formation and having a passageway providing said conduit means.
6. A safety edge according to claim 1, said one region being at one end of said sheath, to leave the remainder of said sheath sensitive to pressure change.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US07/085,561 US4785143A (en) | 1987-08-17 | 1987-08-17 | Safety edge for a door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/085,561 US4785143A (en) | 1987-08-17 | 1987-08-17 | Safety edge for a door |
Publications (1)
Publication Number | Publication Date |
---|---|
US4785143A true US4785143A (en) | 1988-11-15 |
Family
ID=22192450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/085,561 Expired - Lifetime US4785143A (en) | 1987-08-17 | 1987-08-17 | Safety edge for a door |
Country Status (1)
Country | Link |
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US (1) | US4785143A (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4908483A (en) * | 1989-08-21 | 1990-03-13 | Miller Edge, Inc. | Sensing edge having a pressure sensitive switch for a door |
US4972054A (en) * | 1989-07-21 | 1990-11-20 | Miller Edge, Inc. | Redundant sensing edge for a door |
US5023411A (en) * | 1989-07-21 | 1991-06-11 | Miller Edge, Inc. | Sensing edgeswitch for a door |
US5027552A (en) * | 1990-08-16 | 1991-07-02 | Miller Edge, Inc. | Redundant sensing edge for a door for detecting an object in proximity to the door edge |
US5066835A (en) * | 1990-09-19 | 1991-11-19 | Miller Edge, Inc. | Sensing edge |
US5087799A (en) * | 1990-12-27 | 1992-02-11 | Techstrip Inc. | Power Door sensing strip |
US5089672A (en) * | 1990-09-19 | 1992-02-18 | Miller Edge, Inc. | Flexible electrically conductive contact for a switch which is actuated upon force being applied thereto |
EP0491117A1 (en) * | 1990-12-19 | 1992-06-24 | Miller Edge, Inc. | A sensing edge for a door and method of making the same |
US5192381A (en) * | 1990-12-27 | 1993-03-09 | Techstrip Inc. | Power door sensing strip |
US5260529A (en) * | 1991-07-19 | 1993-11-09 | Miller Edge, Inc. | Sensing edge for a door including a switch and flexible protruding sensing members |
US5262603A (en) * | 1992-05-12 | 1993-11-16 | Miller Edge, Inc. | Sensing edge |
US5345671A (en) * | 1992-05-12 | 1994-09-13 | Miller Edge, Inc. | Process of making a sensing edge with a failsafe sensor |
US5394961A (en) * | 1993-04-29 | 1995-03-07 | Montgomery Elevator Company | Safety edge assembly for elevator doorways |
US5695859A (en) * | 1995-04-27 | 1997-12-09 | Burgess; Lester E. | Pressure activated switching device |
US5728984A (en) * | 1996-11-20 | 1998-03-17 | Miller Edge, Inc. | Sensing safety edge systems |
US5793005A (en) * | 1994-10-06 | 1998-08-11 | Nippon Soken Inc. | Collision detecting apparatus operable in response to deformation and acceleration |
US5839227A (en) * | 1997-07-29 | 1998-11-24 | Gardner; Andrew Joseph | Safety edge for an electrically operated door |
US5856644A (en) * | 1995-04-27 | 1999-01-05 | Burgess; Lester E. | Drape sensor |
US5942966A (en) * | 1996-04-04 | 1999-08-24 | Haake; Andre | Closing-edge-type fuse |
US5962825A (en) * | 1998-06-15 | 1999-10-05 | Miller Edge, Inc. | Universal sensing edge |
US6114645A (en) * | 1995-04-27 | 2000-09-05 | Burgess; Lester E. | Pressure activated switching device |
US6121869A (en) * | 1999-09-20 | 2000-09-19 | Burgess; Lester E. | Pressure activated switching device |
US6329617B1 (en) | 2000-09-19 | 2001-12-11 | Lester E. Burgess | Pressure activated switching device |
US6337549B1 (en) * | 2000-05-12 | 2002-01-08 | Anthony Gerald Bledin | Capacitive anti finger trap proximity sensor |
US6396010B1 (en) | 2000-10-17 | 2002-05-28 | Matamatic, Inc. | Safety edge switch for a movable door |
US6437263B1 (en) | 2001-10-11 | 2002-08-20 | Lester E. Burgess | Drape sensor |
US6571512B1 (en) | 2002-04-24 | 2003-06-03 | Miller Edge, Inc. | Universal sensing edge with non-melt end closure |
US20060192682A1 (en) * | 2005-02-16 | 2006-08-31 | Miller Edge, Inc. | Bi-directional sensing edge for gate |
US8832996B2 (en) | 2010-10-05 | 2014-09-16 | Miller Edge, Inc. | Sensing edge |
US8901940B2 (en) | 2010-10-05 | 2014-12-02 | Miller Edge, Inc. | Resistor storage cavity in plug of sensing edge |
US10000958B2 (en) | 2016-05-02 | 2018-06-19 | Rob J. Evans | Intelligent sensing edge and control system |
US10151131B2 (en) | 2016-01-13 | 2018-12-11 | Miller Edge, Inc. | Combination contact and non-contact sensing edge |
US10246927B2 (en) | 2010-10-05 | 2019-04-02 | Miller Edge, Inc. | Sensing edge |
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US3315080A (en) * | 1962-11-20 | 1967-04-18 | Matsushita Electric Ind Co Ltd | Solid-state image intensifier with variable contrast ratio |
US4045631A (en) * | 1976-04-02 | 1977-08-30 | Midland-Ross Corporation | Touch-sensitive door control switch |
US4051336A (en) * | 1976-04-29 | 1977-09-27 | Miller Brothers | Pressure sensitive door edge switch and actuator construction |
US4066851A (en) * | 1975-10-30 | 1978-01-03 | Chomerics, Inc. | Keyboard switch assembly having foldable printed circuit board, integral spacer and preformed depression-type alignment fold |
US4396814A (en) * | 1980-10-20 | 1983-08-02 | Bearge Miller | Threshold adjustable safety edge construction for a motor operated door |
-
1987
- 1987-08-17 US US07/085,561 patent/US4785143A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315080A (en) * | 1962-11-20 | 1967-04-18 | Matsushita Electric Ind Co Ltd | Solid-state image intensifier with variable contrast ratio |
US4066851A (en) * | 1975-10-30 | 1978-01-03 | Chomerics, Inc. | Keyboard switch assembly having foldable printed circuit board, integral spacer and preformed depression-type alignment fold |
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US4972054A (en) * | 1989-07-21 | 1990-11-20 | Miller Edge, Inc. | Redundant sensing edge for a door |
US5023411A (en) * | 1989-07-21 | 1991-06-11 | Miller Edge, Inc. | Sensing edgeswitch for a door |
US4908483A (en) * | 1989-08-21 | 1990-03-13 | Miller Edge, Inc. | Sensing edge having a pressure sensitive switch for a door |
US5027552A (en) * | 1990-08-16 | 1991-07-02 | Miller Edge, Inc. | Redundant sensing edge for a door for detecting an object in proximity to the door edge |
US5089672A (en) * | 1990-09-19 | 1992-02-18 | Miller Edge, Inc. | Flexible electrically conductive contact for a switch which is actuated upon force being applied thereto |
US5066835A (en) * | 1990-09-19 | 1991-11-19 | Miller Edge, Inc. | Sensing edge |
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US5087799A (en) * | 1990-12-27 | 1992-02-11 | Techstrip Inc. | Power Door sensing strip |
US5192381A (en) * | 1990-12-27 | 1993-03-09 | Techstrip Inc. | Power door sensing strip |
US5260529A (en) * | 1991-07-19 | 1993-11-09 | Miller Edge, Inc. | Sensing edge for a door including a switch and flexible protruding sensing members |
US5262603A (en) * | 1992-05-12 | 1993-11-16 | Miller Edge, Inc. | Sensing edge |
US5345671A (en) * | 1992-05-12 | 1994-09-13 | Miller Edge, Inc. | Process of making a sensing edge with a failsafe sensor |
WO1994006138A1 (en) * | 1992-09-08 | 1994-03-17 | Miller Edge, Inc. | Sensing edge |
US5394961A (en) * | 1993-04-29 | 1995-03-07 | Montgomery Elevator Company | Safety edge assembly for elevator doorways |
US5793005A (en) * | 1994-10-06 | 1998-08-11 | Nippon Soken Inc. | Collision detecting apparatus operable in response to deformation and acceleration |
US5886615A (en) * | 1995-04-27 | 1999-03-23 | Burgess; Lester E. | Pressure activated switching device with piezoresistive material |
US6072130A (en) * | 1995-04-27 | 2000-06-06 | Burgess; Lester E. | Pressure activated switching device |
US5828289A (en) * | 1995-04-27 | 1998-10-27 | Burgess; Lester E. | Pressure activated switching device |
US6114645A (en) * | 1995-04-27 | 2000-09-05 | Burgess; Lester E. | Pressure activated switching device |
US5856644A (en) * | 1995-04-27 | 1999-01-05 | Burgess; Lester E. | Drape sensor |
US5695859A (en) * | 1995-04-27 | 1997-12-09 | Burgess; Lester E. | Pressure activated switching device |
US5910355A (en) * | 1995-04-27 | 1999-06-08 | Burgess; Lester E. | Pressure activated switching device |
US5962118A (en) * | 1995-04-27 | 1999-10-05 | Burgess; Lester E. | Pressure activated switching device |
US5942966A (en) * | 1996-04-04 | 1999-08-24 | Haake; Andre | Closing-edge-type fuse |
US5728984A (en) * | 1996-11-20 | 1998-03-17 | Miller Edge, Inc. | Sensing safety edge systems |
US5839227A (en) * | 1997-07-29 | 1998-11-24 | Gardner; Andrew Joseph | Safety edge for an electrically operated door |
US5962825A (en) * | 1998-06-15 | 1999-10-05 | Miller Edge, Inc. | Universal sensing edge |
US6121869A (en) * | 1999-09-20 | 2000-09-19 | Burgess; Lester E. | Pressure activated switching device |
US6337549B1 (en) * | 2000-05-12 | 2002-01-08 | Anthony Gerald Bledin | Capacitive anti finger trap proximity sensor |
US6329617B1 (en) | 2000-09-19 | 2001-12-11 | Lester E. Burgess | Pressure activated switching device |
WO2002025047A1 (en) | 2000-09-19 | 2002-03-28 | Burgess Lester E | Pressure activated switching device |
US6396010B1 (en) | 2000-10-17 | 2002-05-28 | Matamatic, Inc. | Safety edge switch for a movable door |
US6437263B1 (en) | 2001-10-11 | 2002-08-20 | Lester E. Burgess | Drape sensor |
US6571512B1 (en) | 2002-04-24 | 2003-06-03 | Miller Edge, Inc. | Universal sensing edge with non-melt end closure |
US20060192682A1 (en) * | 2005-02-16 | 2006-08-31 | Miller Edge, Inc. | Bi-directional sensing edge for gate |
US7282879B2 (en) | 2005-02-16 | 2007-10-16 | Miller Edge, Inc. | Bi-directional sensing edge for gate |
US8832996B2 (en) | 2010-10-05 | 2014-09-16 | Miller Edge, Inc. | Sensing edge |
US8901940B2 (en) | 2010-10-05 | 2014-12-02 | Miller Edge, Inc. | Resistor storage cavity in plug of sensing edge |
US9091108B2 (en) | 2010-10-05 | 2015-07-28 | Miller Edge, Inc. | Sensing edge |
US9863179B2 (en) | 2010-10-05 | 2018-01-09 | Miller Edge, Inc. | Sensing edge |
US10246927B2 (en) | 2010-10-05 | 2019-04-02 | Miller Edge, Inc. | Sensing edge |
US10151131B2 (en) | 2016-01-13 | 2018-12-11 | Miller Edge, Inc. | Combination contact and non-contact sensing edge |
US10000958B2 (en) | 2016-05-02 | 2018-06-19 | Rob J. Evans | Intelligent sensing edge and control system |
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